From 82a07a21bbbfeac7e60734b6f6a59764a7dae6d9 Mon Sep 17 00:00:00 2001 From: Attila Kovacs Date: Tue, 31 Dec 2024 16:41:05 +0100 Subject: [PATCH] README edit and site update --- README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.md b/README.md index 742c3693..b163c5f0 100644 --- a/README.md +++ b/README.md @@ -406,7 +406,7 @@ and B1900 epochs, respectively. TIRS (Terrestrial Intermediate Reference System) and its older equivalent PEF (Pseudo-Earth-Fixed) are not explicitly referenced in SuperNOVAS. But they can be thought of as a special case of ITRS (International Terrestrial Reference -System) or TOD (True of Date) with DUT1 (= UT1-UTC), and the polar offsets (_dx_, _dy_) all set to zero. +System) with DUT1 (= UT1-UTC), and the polar offsets (_dx_, _dy_) all set to zero. WGS84 has been superseded by ITRS for higher accuracy definitions of Earth-based locations. WGS84 matches ITRS to the 10m level globally, but it does not account for continental drifts and crustal motion. In (Super)NOVAS all Earth-fixed